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COMPARATIVE ANALYSIS OF RESERVOIR PARAMETERS OF FLYSCH SANDSTONES IN THE S-8 WELL (WESTERN CARPATHIANS, SOUTHERN POLAND)
Abstract
This study focuses on petrophysical characteristics of flysch sandstones in the S-8 well section, located in the western part of the Polish Outer Carpathians (southern Poland). A number of laboratory tests were performed with application of the mercury injection capillary pressure, low field nuclear magnetic resonance, X-ray diffraction and pulse decay permeability measurements. Laboratory tests results were compared with the well logging interpretation. The laboratory analyses were conducted on core samples from the S-8 well from the depth interval of 777 пїЅ 2000 meters. The analysis of mineralogical composition shows relatively high content of quartz and carbonates (63% on average) and low proportion of clay minerals (below 20%), which discloses high values of calculated brittleness indexes (0.8 on average). The results of the laboratory methods allowed for stating that the studied sandstones reveal very low values of the effective porosity (1.38 % on average), high values of the irreducible water saturation index (0.6 on average) and extremely low values of permeability (0.4 nD on average). The results of the applied methods imply that the analysed sandstones have features of unconventional reservoir rocks with high potential for the hydraulic fracturing.
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Karnkowski P., Oil and gas deposits in Poland, Geosynoptics Society “Geos”, University of Mining and Metallurgy, Cracow, pp. 1-380, 1999.
Ślączka A., Kruglov S., Golonka J., Oszczypko N., Popadyuk I., Geology and Hydrocarbon Resources of the Outer Carpathians, Poland, Slovakia, and Ukraine: General Geology, in: Golonka J., Picha F.J. (Eds.), The Carpathians and their foreland: Geology and hydrocarbon resources, AAPG Memoir 84, pp. 221-258, 2006.
Glorioso J.C, Rattia A.J., Unconventional Reservoirs: Basic Petrophysical Concepts for Shale Gas, Society of Petroleum Engineers. SPE/EAGE European Unconventional Resources Conference and Exhibition, 20-22 March, Vienna, Austria, 2012.
Ross D.J.K., Bustin R.M., The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs, Marine and Petroleum Geology, 26, pp. 916-927, 2009.
Furmann A., Mastalerzb M., Schimmelmanna A., Pedersenc P.K., Bish D., Relationships between porosity, organic matter, and mineral matter in mature organic-rich marine mudstones of the Belle Fourche and Second White Specks formations in Alberta, Canada. Marine and Petroleum Geology, 54, pp. 65-81, 2014.
Rezaee R., Saeedi A., Clennel B., Tight gas sands permeability estimation from mercury injection capillary pressure and nuclear magnetic resonance data. Journal of Petroleum Science and Engineering, 88-89, pp. 92-99, 2012.
Gao Z., Hu Q., Estimating permeability using median pore-throat radius obtained from mercury intrusion porosimetry, Journal of Geophysics and Engineering, 10, 025014, pp. 1-8, 2013.
Washburn K.E, Birdwell J.E., Updated methodology for nuclear magnetic resonance characterization of shales, Journal of Magnetic Resonance, vol. 233, pp. 17-28, 2013.
Zhang X., Spiers C.J., Peach C.J., Hebing A., Tight rock permeability measurements by pressure pulse decay and modeling, International Symposium of the Society of Core Analysts held in Napa Valley, 16-19 September, California, USA, 2013.
Folk R.L., Petrology of Sedimentary Rocks, Hemphill’s, Austin, Texas, pp. 154-170, 1968.
Hartmann D.J., Beaumont E.A., Predicting reservoir system quality and performance. In: Beaumont E.A., Foster N.H. (Eds.), Exploring for Oil and Gas Traps: AAPG Treatise of Petroleum Geology: Handbook of Petroleum Geology, pp. 9-1 9- 154, 1999.
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